Breadcrumb Home > Dictionary > Index A appetitive behavior: Meaning and Definition of Find definitions for: ap'petitive behav'ior Pronunciation: [key] — Ethology. Ethology. activity that increases the likelihood of satisfying a specific need, as restless searching for food by a hungry predator (distinguished from consummatory behavior). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. appetitive appetizer ✖ Related Content Daily Word Quiz: deracinate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language